IT1034818B - PROCEDURE FOR TREATING MEMBRANES - Google Patents

PROCEDURE FOR TREATING MEMBRANES

Info

Publication number
IT1034818B
IT1034818B IT21968/75A IT2196875A IT1034818B IT 1034818 B IT1034818 B IT 1034818B IT 21968/75 A IT21968/75 A IT 21968/75A IT 2196875 A IT2196875 A IT 2196875A IT 1034818 B IT1034818 B IT 1034818B
Authority
IT
Italy
Prior art keywords
procedure
treating membranes
membranes
treating
Prior art date
Application number
IT21968/75A
Other languages
Italian (it)
Original Assignee
Rhone Poulenc Ind
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rhone Poulenc Ind filed Critical Rhone Poulenc Ind
Application granted granted Critical
Publication of IT1034818B publication Critical patent/IT1034818B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
    • B01D71/68—Polysulfones; Polyethersulfones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
    • C08G75/20—Polysulfones
    • C08G75/23—Polyethersulfones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/162—Use of acids
IT21968/75A 1974-04-03 1975-04-03 PROCEDURE FOR TREATING MEMBRANES IT1034818B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7411767A FR2266532B1 (en) 1974-04-03 1974-04-03

Publications (1)

Publication Number Publication Date
IT1034818B true IT1034818B (en) 1979-10-10

Family

ID=9137221

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21968/75A IT1034818B (en) 1974-04-03 1975-04-03 PROCEDURE FOR TREATING MEMBRANES

Country Status (13)

Country Link
US (1) US3994860A (en)
JP (1) JPS5110898A (en)
BE (1) BE827470A (en)
CH (1) CH591881A5 (en)
DE (1) DE2514636A1 (en)
ES (1) ES436257A1 (en)
FR (1) FR2266532B1 (en)
GB (1) GB1462546A (en)
IL (1) IL46977A0 (en)
IT (1) IT1034818B (en)
LU (1) LU72193A1 (en)
NL (1) NL7503639A (en)
ZA (1) ZA752084B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53149181A (en) * 1977-06-01 1978-12-26 Daicel Chem Ind Ltd Semipermeable membrane
JPS5416378A (en) * 1977-07-08 1979-02-06 Asahi Chem Ind Co Ltd Polysulfone semipermeable membrane
DE3043073C2 (en) * 1980-11-14 1984-07-05 Fresenius AG, 6380 Bad Homburg Filtration membrane and method for hydrophilization
US4427419A (en) 1982-03-12 1984-01-24 The Standard Oil Company Semipermeable membranes prepared from polymers containing pendent sulfone groups
US4521224A (en) * 1982-03-12 1985-06-04 The Standard Oil Company Semipermeable membranes prepared from polymers containing pendent sulfone groups
US4414368A (en) * 1982-12-27 1983-11-08 Albany International Corp. Chlorosulfonated polysulfones and derivatives thereof
GB8331198D0 (en) * 1983-11-23 1983-12-29 Ici Plc Membranes
CA1263572A (en) * 1984-06-15 1989-12-05 Kenichi Ikeda Sulfonated polysulfone composite semipermeable membranes and process for producing the same
US4699634A (en) * 1985-07-08 1987-10-13 The Standard Oil Company Process for the modification of aromatic polymers via phase transfer catalysis to produce polyarylene polymers and the use thereof
US4717395A (en) * 1986-08-07 1988-01-05 The Dow Chemical Company Gas separations using membranes comprising sulphonated polyether sulphone
US4990252A (en) * 1987-02-04 1991-02-05 Hydanautics Stable membranes from sulfonated polyarylethers
US5480554A (en) * 1992-05-13 1996-01-02 Pall Corporation Integrity-testable wet-dry-reversible ultrafiltration membranes and method for testing same
US5788862A (en) * 1992-05-13 1998-08-04 Pall Corporation Filtration medium
DE4220441A1 (en) * 1992-06-23 1994-01-05 Gambro Dialysatoren Process for drying porous ultrafilter filtration membranes
EP0604883A3 (en) * 1992-12-30 1995-02-15 Hoechst Ag Process for preparing porous hydrophilic membranes.
US5624965A (en) * 1994-04-26 1997-04-29 The Graver Company Arylenedialkylidene polymers for high performance ion exchange membranes
DE60333161D1 (en) * 2003-04-10 2010-08-12 X Flow Bv Process for drying a wet porous membrane structure
RU2682877C2 (en) * 2013-11-01 2019-03-22 Вирджиния Тек Интеллекчуал Пропертиз, Инк. Cross-linked polymer compositions, gas separating membranes made from such cross-linked polymer compositions, methods of making such membranes and gas separating methods using such membranes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2040950A5 (en) * 1969-04-30 1971-01-22 Rhone Poulenc Sa
US3717594A (en) * 1970-01-19 1973-02-20 Ecodyne Corp Stabilizing cation resins
FR2138333B1 (en) * 1971-05-24 1974-03-08 Rhone Poulenc Sa
BE795743A (en) * 1972-03-15 1973-06-18 Politechnika Warszawska PROCESS FOR PREPARATION OF SHEETS AND COATINGS BASED ON POLYARYLATES, AND PRODUCTS OBTAINED
US3875096A (en) * 1974-03-20 1975-04-01 Us Interior Process for the preparation of a stable salt form of a sulfonated polyarylether sulfone

Also Published As

Publication number Publication date
IL46977A0 (en) 1975-06-25
BE827470A (en) 1975-10-02
FR2266532A1 (en) 1975-10-31
CH591881A5 (en) 1977-10-14
ZA752084B (en) 1976-02-25
NL7503639A (en) 1975-10-07
GB1462546A (en) 1977-01-26
ES436257A1 (en) 1977-02-01
JPS5110898A (en) 1976-01-28
FR2266532B1 (en) 1976-12-17
LU72193A1 (en) 1976-03-02
DE2514636A1 (en) 1975-10-09
US3994860A (en) 1976-11-30

Similar Documents

Publication Publication Date Title
BE833473A (en) MEMBRANE
AR209778A1 (en) PROCEDURE FOR OBTAINING MICROPOROUS MEMBRANE
SE7601201L (en) MEMBRANE PUMP
IT1034818B (en) PROCEDURE FOR TREATING MEMBRANES
DK146615C (en) PROCEDURE FOR IMPROVING SEMIPERMEABLE MEMBRANES
SE397771B (en) DEVICE WITH AT LEAST ONE SEMIPERMEABLE MEMBRANE FOR FLUID TREATMENT
DK440775A (en) MEMBRANE DIFFUSION DEVICE
NL7613869A (en) MEMBRANE SYSTEM.
DK293775A (en) ASYMMETRIC SEMIPERMEABLE MEMBRANES
IT1069054B (en) PROCEDURE AND APPARATUS FOR WATERPROOFING THE UNDERGROUND BY WATERPROOF MEMBRANES
AT343084B (en) ASYMMETRIC, SEMIPERMEABLE MEMBRANES
NL7509646A (en) MEMBRANE FILTER DEVICE.
IT1042173B (en) PROCEDURE FOR PREPARING BUTANDIOLI
BE836854A (en) DYNAMICALLY SHAPED MEMBRANE
BE842345R (en) MEMBRANES
DK148436C (en) FIBROEST BACKGROUND FOR SEMIPERMEABLE MEMBRANES
AR208000A1 (en) UROQUINASE PURIFICATION PROCEDURE
DK304475A (en) MEMBRANE SUPPLIED FLUIDA TREATMENT DEVICE
IT1071466B (en) SULPHURATED POLYMERS FOR MEMBRANES
FR2295065A1 (en) SOLUTE SEPARATION MEMBRANE
NL7610852A (en) MEMBRANE FILTRATION DEVICE.
AT334403B (en) MEMBRANE FILTRATION SYSTEM
IT1040067B (en) PROCEDURE FOR PREPARING CHLOROSILANS
BE842016A (en) SEMIPERMEABLE MEMBRANES
NL7607124A (en) MEMBRANE FILTRATION PLANT.